Burnishing-machine.



Patented Nov. 12, 1918.

2 SHEETS-SHEET I- //l/ VE/l/ 75/? F. M. FURBER.

BURNISHING MACHINE.

APPLICATION FILED APR-27.1916.

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F. M. FUHBER.

BURNSHlNG MACHINE.

APPLICATION FILED APRJA ma.

Patented Nov. 12, 1918.

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FREDERICK M. FUR/BER, OF REVERE, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 UNITED SHQE MACHINERY CORPORATION, OF PATEBSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

BURNISHING-MAGHIN-E.

Application filed April 2'7, 1916.

To all whom it may concern:

Be it known that I, F REDERIOK M. FURBER, a citizen of the United States, residing at Revere, in the county of Sufl'olk and State of Massachusetts, have invented certain Improvements in Burnishing-lvlachines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to burnishing machines and in particular to machines of'the oscillatory tool type for burnishing the edges of shoes.

It is a present practice to mount two burnishing tools or irons uponmachines of'this type, one shaped for the forepart edge and the other for the shank. mounted on a shifting carriage to facilitate their interchange when the operator passes from shank to forepart, or vice versa. It is necessary that the interchanging'mechanism be positive and unfailable in its action, and that it be operable without undue effort or disturbance of the operators position. It is also recognized as desirable that the tools be mounted resiliently with regard to upward pressure'in order to relieve the strain on the operator and also to enhance the quality of work done.

It is anobject of my invention to providea machine which shall have the above described advantages and which shall be capable of producing an increased quantity of work with diminished fatigue to the operator.

It is a further object of my invention to improve and simplify theconstruction of the machin shown in my prior Patent No. 1,107,282.

A feature of my invention is a rocker frame, a tool carrier rotatably mounted thereon resiliently against the pressure of the work, and instrumentalities for rotating said carrier for interchanging tools carried thereby.

Another feature of my invention is a novel locking bolt for locking the rotatable carrier-to the rocker frame. makes it-unnecessary to move the entire tool carrier in order to unlock it. The comparatively light bolt is more. easily and quickly set in motion and its locking action at the Specification of Letters Patent.

The toolsare- This feature Patented Nov. 12, 1918.

Serial No. 93,912.

end of the interchange of tools is more positive in its action than that of a heavier mechanism. A step-by-step carrier moving means is provided which positively places the desired tool in position when the carrier is unbolted. This mechanism, in the machine shown, operates through the locking bolt or latch, which thus serves a double purpose.

A further feature of my invention is a novel construction of finger hook which is normally movable out of operative position and is locked in adjustable operative position by the operator. This feature provides the advantages of a finger hook which is adjustable to suit operators with different sized hands or to correspond .to shoes of different styles or sizes, and which at the same time can be moved out of operative position when the rear end of the shank is being set and locked in operative position while the too is being set.

These and other features of the invention, comprising certain arrangements and combinations of parts, will be described in" the following specification and pointed out in the claims.

In the drawings which show a preferred embodiment of the invention,

Figure 1 shows a side elevation partly broken away,

Fig. 2 is a front elevation of the tool carrier,

Figs. 3 and l: are side and front views of the locking bar,

Figs. 5 and 6 are side and front views of the shifting tool holder, the former being in section, and. I

Fig. 7 is a detail of the finger hook mechanism, as seen in section from the line 77 of Fig. 1.

The shaft 10 is oscillated rapidly in bear- 95 ings in the head 11. An arm 12 is rigidly fastened to its outer end by the screw 13, and carries a head 13 having two vertioalsoclc ets, 14 and 15, in it. The socket 14 contains an electric heating unit mounted substantially'as shown in my application Serial No. 9,343, filed February 19, 1915. The lower part of the head 13 has two lock notches .17, for engagement 'with a locking bolt,

tably in thefslocket 15, and carries atits upper end a nut 17 which forms a shoulder supporting the holder on the head 13. The holder is hollow and has slidably mounted in it a locking bolt 18. A transverse channel 19 is cut across the bottom of the holder.

The locking bolt 18 has a T-shaped bottom 20 having an upstanding projection 21 on each end of the T arm. This T arm is placed in the transverse channel 19 and the upstanding portions 21 extend up beside the carrier 16, and into the lock notches 17, (see Figs. 1 and 6). The nut 17 is counterbored at 22, and the head 23 of the locking bolt has a slot 2 1 in it. A spring 25 surrounds the bolt 18 and rests against shoulders in the carrier 16 and on the bolt 18, thus holding the bolt raised.

WVith the bolt iii-position, as shown, the carrier 16 is held against rotation by the engagement of the portions 21 with the notches 17 and channel 19. Vhen the head 23 is pushed down into the recess 22, the lugs 21 will descend out of the notches 17 and leave the carrier 16 and bolt 18 free to rotate in the head 13.

The rotation of the tool carrier is accomplished substantially as in my Patent No. 1,107,282 above referred to. A lever 26 is pivoted at 27 to the main frame of the machine, and carries a threaded cross arm 28 loosely mounted in its upper end. A screw 29 having a screw driver end 30 is mounted 'in the arm 28. The lower end of the lever has a member 31 adapted to be engaged by the shoe in the hands of the operator. When the operator desires to exchange the shank for the forepart tool, or vice versa, he pushes on the member 31 with the shoe. The screw driver end 30 descends into the notch 24. whereupon the threaded arm 28 exerts a combined torque and thrust upon it, and through it, to the bolt 18. The bolt 18 is forced downward since the engagement between the lugs 21 and the notches 17 prevent its turning. As soon as the bolt has descended sufliciently to free the lugs 21 from the notches 17 the screw 29 and the bolt begin to turn, revolving the carrier 16, the lugs 21 riding around on the bottom of the head 13 until, after a 180 rotation, they reach the notches 17, into which they ascend and again lock the carrier 16 to the head 13'.

t will be noticed that there is a clearance 31 between the lower tool carrying head of the carrier 16 and the bottom of the head 13. This permits the whole carrier to rise against the spring 32, the pressure of which can be regulated by the device 33, thus cushioning the reaction on the shoe in the hands of the operator, and avoiding much fatigue.

In Figs. 1 and 7 are shown an improved finger hook somewhat similar to that shown in my application No. 9,343, filed February 19, 1915, but having a superior degree of flexibility in use. A threaded stud o: is mounted in the lever 26, carrying a nut This nut has a reduced portion 34. The finger hook 35 is slidably and rotatably mounted in the lever 26 and carries a quadrifurcate head 36 straddling the stud 32' and the nut 33. The members 37 of the rear fork have a spread substantially equal to the diameter of the reduced portion 3%. A spring 38 pushes the hook 35 back until the front fork members 39 engage the nut 33.

When the operator is setting the shank and approaching the heel breast, it is necessary for the hook 35 to turn a little to one side or the other. In view of the clearance between the arms 37 and the stud 32, this is possible. In setting the edge around the toe, the operator grasps the hook and pulls it forward until the fork members 37 engage the nut 33, just fitting around the reduced portion 34, so that the hook is steadily held against rotation. The position of the hook can be adjusted by screwing the nut 33 along the stud 32.

Having described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. A machine of the class described, having, in combination, a rocker frame, a tool carrier rotatably mounted thereon resiliently against pressure of the work, and normally locked thereto, and instrumentalities for rotating said carrier operated by contact with the shoe while near burnishing position in the hands of the operator.

2. A machine of the class described, having, in combination, a rocker frame, a tool carrier rotatably mounted thereon, and a locking bolt for rotating said carrier and for looking it to said rocker frame.

3. A machine of the class described, having, in combination, a rocker frame, a tool carrier rotatably mounted thereon, a member always in engagement with said carrier and normally in engagement with said rocker frame for rotating said carrier and looking it to said rocker frame.

4:. A machine of the class described having, in combination, a rocker frame, a tool carrier movably mounted thereon, a plurality of tools on the carrier, a latch member for directly locking said frame and carrier together, and mechanism for effecting a step-by-step movement of the carrier when unlatched.

5. A burnishing machine comprising, in

said tool holder, said means including a device located in close proximity to and opposite the tread face of the sole of the shoe when in burnishing position and arranged to be operated by movement of the shoe being burnished to actuate said means.

6. A burnishing machine, comprising in combination, a rocker frame, a tool holder on said frame resiliently mounted against the pressure of the work, a plurality of tools carried thereby, said holder being mounted to rock With said frame and arranged to have a rotative movement relatively thereto to shift said tools, means for locking said tool holder against said rotative movement, an actuating lever, and connections between said lever and tool holder whereby the actuation of the lever effects a rotative movement of said tool holder relatively to said rocker frame, said lever having a part located adjacent to the position occupied by the shoe' when in burnishing position to enable the workman, While holding the shoe firmly in both hands and While standing in the position that he normally occupies while burnishing the shoe, to operate said lever by moving the shoe against it and thereby to shift the tools carried by said tool holder.

7. A rocker frame, a tool holder constructed and arranged tomove resiliently relatively to said frame, and to be locked against rotation relative to said frame, and mechanism for unlocking said members and for positively rotating said holder relative to said frame.

8. A machine of the class described comprising, in combination, a rocker frame, a tool holder rocking with but movable relative to said frame into different operative positions, and a locking bolt arranged to lock the holder and frame together and to move said holder from one operative position to another.

9. A rocker frame, a tool holder resiliently mounted relatively to said frame and movable relatively thereto into different operathe positions, and means for positively moving said holder from one operative position to another comprising a bolt arranged normally to lock the rocker frame and tool holder together and to rotate on its axis during the change of position of the tool holder.

10. A machine of the class described comprising, in combination, a rocker frame, a tool holder resiliently mounted on said frame, means for locking said holder against angular movement relatively to said frame and positively acting means for unlocking said holder from said frame and for there after effecting a positive angular movement of said holder relatively to the frame.

the first member to unlock said holder and thereafter to rotate the holder.

12. In a burnishing machine, a burnishing tool, a stud mounted near sald tool, carrying a member of a larger lateral dimension than said stud, .and a finger hook rotatably mounted near said tool and having a yoke constructed and arranged to embrace said stud loosely and said member snugly, said hook being constructed and arranged to move said yoke into engagement with said member when operatively stressed by the operator.

13. In a burnishing machine, a burnishing tool, a stud having an adjustable member upon it, and a rotatable finger hook having a yoke constructed and arranged to embrace said stud loosely, and to be moved into a snug engagement with said member when said hook is grasped by the operator.

14;. In a burnishing machine, a burnishing tool, a stud mounted near said tool, carrying a member of a larger lateral dimension than said stud, and a finger rest movably mounted near said tool and having a yoke constructed and arranged to embrace said stud loosely and said member snugly said rest being constructed and arranged to move said yoke into engagement with said member when pulled by the operator.

15. In a burnishing machine, a burnishing tool, a stud having an adjustable member upon it, and a rotatable finger rest having a yoke constructed and arranged to embrace said stud loosely, and to be moved into a snug engagement with said member when said rest is pulled by the operator.

16. In a burnishing machine, a burnishing tool, a stud mounted near said tool, carrying a member of a larger lateral dimension than. said stud, and a finger rest yieldably mounted near said tool and having a yoke constructed and arranged to embrace said stud loosely and said member snugly and to be moved into engagement with the member by the operator. v

17. In a burnishing machine, a burnishing tool, a stud having an adjustable member upon it, and a rotatable finger rest having a yoke constructed and arranged to embrace said stud loosely, and to be moved into a snug engagement with said member.

18. A machine of the class described havlatch member to unlatch the carrier and t0 ing, in combination, a rocker frame, a tool effect automatically a step-by-step movement carrier movably mounted thereon, a piuralof the carrier to interchange the tools. ity of tools on the carrier, a latch member In testimony whereof I have signed my 10 5 for directly locking said frame and carrier name to this specification.

together, and mechanism for operating the FREDERICK M. FURBER.

Copies of this patent may be obtained for five cents each, by addressing the Sommissioner of Patents, Washington, D. C. 

